Device and method for the uniform distribution of a bulk materials stream

Abstract

A method and a device for the uniform distribution of a bulk materials stream, particularly one conveyed pneumatically, onto a more extended cross-sectional area possibly divided up into partial stream cross-sections by partitions, is distinguished by the bulk materials stream passing through an elongate vertical charging space, at the end of which it is gathered into a narrowing outlet channel in which the bulk material shows an essentially uniform cross-section distribution and that this bulk materials stream then passes to the tip of a coaxially arranged distribution cone which deflects the bulk material sideways uniformly in all directions and in this way forms a hollow bulk materials curtain of uniform circumferential distribution. This bulk materials curtain can be used as such, for instance in a vessel in which the bulk material is sprayed with liquid, or can be used for the further subdivision into partial streams.

I claim: 
     
       1. A device for the relative uniform distribution of particulate material comprising in sequence: (a) first elongated tube;   (b) first truncated tubular cone, said first elongated tube terminating at the narrower end of said first truncated tubular cone;   (c) tubular expansion chamber having one end operatively connected to the wider end of said first truncated tubular cone;   (d) a second truncated tubular cone having its wider end operatively connected to the other end of said tubular expansion chamber;   (e) second elongated tube having one end operatively connected to the narrower end of said second truncated tubular cone;   (f) charging tube coaxially disposed at one end portion with said other end of said second elongated tube and having a diameter larger than said second elongated tube;   (g) third truncated tubular cone having its wider end operatively connected to the other end of said charging tube;   (h) relatively short tube having one end operatively connected to the narrower end of said third truncated tubular cone and the other end terminating in a downwardly facing opening;   (i) cone distribution means positioned coaxially below said opening and through said opening to define an annular space between said cone distribution means and said relatively short tube whereby the particular material passes through said annular space.   
     
     
       2. The device of claim 1 wherein the cone distribution means terminates in a vertical cylindrical housing adapted and constructed to receive particulate material from said cone distribution means, said cone distribution means having a skirt depending therefrom; said skirt and said cylindrical housing defining an annular space therebetween. 
     
     
       3. The device of claim 1 wherein the first elongated tube is approximately one half of the diameter of a portion of said tubular expansion chamber. 
     
     
       4. The device of claim 1 wherein said first elongated tube is approximately one half of the diameter of said charging tube. 
     
     
       5. The device of claim 1 wherein said tubular expansion chamber is approximately the same diameter as said charging tube. 
     
     
       6. The device of claim 1 wherein the wider end of said first truncated tubular cone is approximately the same diameter as the wider end of said second truncated tubular cone. 
     
     
       7. The device of claim 1 wherein the wider end of said first truncated tubular cone is approximately the same diameter as said tubular expansion chamber. 
     
     
       8. The device of claim 1 wherein the wider end of said second truncated tubular cone is approximately the same diameter as said tubular expansion chamber. 
     
     
       9. The device of claim 1 wherein said cone distribution means is composed of a first cone part and a second cone part. 
     
     
       10. The device of claim 1 wherein said cone distribution means is adjustably positioned coaxially below said opening by a holding rod means, said holding rod means extends through said third truncated tubular cone and into said charging tube. 
     
     
       11. The device of claim 1 wherein said annular space is made larger or smaller by adjusting the position of the cone distribution means in relation to said opening whereby the amount of particulate bulk material passing through said annular space is controlled.